code: def main():
      args = parse_args()
  
      if args.split_factor:
          shard_cmd = get_shard_cmd_args(args)
          if shard_cmd:
              cmd = args.command + shard_cmd
          else:
              print("No tests for {} shard".format(args.shard))
              return 0
      else:
          cmd = args.command
  
      rc = subprocess.call(cmd)
      if rc:
          print(
              "Some tests failed. To reproduce run: {}".format(
                  shlex.join(cmd)
              )
          )
      return rc
  
file_path: catboost/build/scripts/split_unittest.py
imports: import argparse
  import tempfile
  import shlex
  import subprocess
label_desc: Use image node_id 7 for calling a global function with example usage: main() and returns: rc, int